× Home › Property records › Richmond County › Staten Island › Sloane Avenue › 21 Sloane Avenue21 Sloane AvenueStaten Island · Richmond County · 10306 01 · 1–2 Family OpenValue $1,207,638 ▾
Owner of record
Owner Richard P. Castellano, As Trustee
Assessment · 2025 roll
Land assessed $22,320
Total assessed $73,320
Est. annual tax $10,646 (2027, excl. special districts)
Building
Style One Story (Permanent Living Quaters)
Year built 1970
Living area 1,840 sq ft
Lot
Size 0.27 acres (GIS)
Frontage × depth 92 × 125 ft
Lot sq ft 11,469
Zoning
District R1-2
Special district NA-1
FAR 0.16 built · 0.75 max residential · 1.0 max facility
Zoning map 27a
Recorded documents · 1
NYC REAL PROPERTY TRANSFER TAX
Jul 6, 2021
grantor/seller Castellano, Phyllis
grantee/buyer Richard P. Castellano, As Trustee
View on ACRIS ↗
DOB complaints — total 1 · open 0 · closed 1
Construction – contrary to/beyond approved plans
Closed
Jul 12, 2025
Complaint 5191475
View on BIS ↗ No DOB violations or HPD violations on file.
Deed & identifiers
SBL 5009520085
SWIS 640100
Parcel ID 6401005009520085
Who owns 21 Sloane Avenue? 21 Sloane Avenue, Staten Island is owned by Richard P. Castellano, As Trustee per the 2025 NYS assessment roll.
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Public record, NYS tax roll 2025. Values are the assessor's, not an appraisal. Provided for informational purposes only — accuracy and completeness are not warranted or guaranteed; verify against official sources before relying on it.
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